Balanced brackets: Difference between revisions

=={{header|jq}}==

{{works with|jq}}

'''Works with gojq, the Go implementation of jq.'''

<syntaxhighlight lang=jq>

def balanced:

if length==0 then true

elif .[:1] == "]" then false

else test("[[][]]") and (sub("[[][]]"; "") | balanced)

end;

def task($n):

if $n%2 == 1 then null

else

(reduce range(0; $n) as $i ("";

. + (if psrb then "[" else "]" end) ))

| "\(.): \(balanced)"

end;

task(0),

task(2),

(range(0;10) | task(4))

</syntaxhighlight>

{{output}}

<pre>

: true

[]: true

]][]: false

[[[[: false

[[[[: false

[][]: true

][][: false

[]]]: false

]]]]: false

]]][: false

[]][: false

][[]: false

</pre>